Yale EF-DC Easy Fit Alarm Door/Window Contact, White, DIY Friendly, Accessory for SR & EF Alarms, Suitable for Main Access Points

Just the job and quickly sent.

works perfectly and so simple to install

Semplice da installare e materiali di buona qualità. Ne ho acquistati 3 e tutti sono stati riconosciuti al primo utilizzo dalla base Yale. Una vitina rende semplice lapertura del dispositivo e la sostituzione della batteria. Ha anche dei distanziali per adattarsi a diversi tipi di porte/finestre.

Easy to install

Makes setting and unsetting very easy.

Cheap and cheerful

Easy to instal, and pair with my existing system.

Value for for money, good product as described, easy to assemble, doing what it says on the description, recommand to anyone who are looking to buy.

second purchase of these additions for my alarm system, easy to install and set up, no problems as long as you get the 2 components as close as possible without them damaging each other.

easy to install. work well